Second Malignant Neoplasms in Pediatric Oncology Patients: A Single Center Experience

  • Hikmet Gülşah Tanyıldız Dr.Sami Ulus Maternity and Children's Education and Research Hospital Pediatric Oncology
  • Şule Yeşil
  • Sibel Akpinar Tekgunduz
  • Mehmet Onur Candir
  • Şule Toprak
  • Ceyhan Bozkurt
  • Nazmiye Yüksek
  • Gürses Şahin
  • Ulya Ertem
Keywords: Cancer, childhood, secondary tumor


Objective: The pediatric malignancy survival rate has increased with new and intensive treatment modality advancements. This has led to an approximately 70% chance of surviving more than 5 years in children diagnosed with cancer. However, the secondary tumor incidence has also increased with these advances. The patient’s quality of life, late side effects, and prevention of secondary malignancies in the future are as important as treating the primary tumor in pediatric cancer patients.Methods: We retrospectively evaluated the charts of 2100 pediatric cancer patients who were diagnosed in our clinic between 1985 and 2012.Results: There were 11 secondary tumors. Male-to-female ratio was 6:5 and median age at diagnosis was 7 years (range, 1 year 3 months–11 years 6 months). Secondary tumor diagnosis was AML in five patients, paraganglioma in one patient, liposarcoma in one patient, rhabdomyosarcoma in one patient, papillary thyroid carcinoma in one patient, malignant fibrous histiocytoma in one patient, and squamous cell carcinoma of the tongue in one patient. AML was the most commonly detected secondary malignancy.Conclusion: We suggest that using less toxic systemic chemotherapy and reduced-dose radiotherapy is increasingly important with targeted treatment modalities to decrease the risk of secondary malignancy. 


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Original Research